<template>
	<div>
		<div class="search">
			<input v-model='keyword' class="search-ipt" type="text" placeholder="输入城市名或者拼音"/>
		</div>
		<div ref='search'  class="search-content" v-show='keyword'>
			<ul>
				<li class="search-item border-bottom" 
					v-for='item of list' 
					:key='item.id'
					@click='handleCityClick(item.name)'
				>{{ item.name }}</li>
				<li class="search-item border-bottom" v-show="hasNodata">没有找到匹配数据</li>
			</ul>

		</div>
	</div>
</template>

<script>
	import Bscroll from 'better-scroll'
	import { mapMutations } from 'vuex'
	export default{
		name: "CitySearch",
		props: {
			cities: Object
		},
		data (){
			return {
				keyword: '',
				list: [],
				timer: null
			}
		},
		methods: {
			handleCityClick(city){
				// this.$store.commit("changeCity",city)
				this.changeCity(city)
				this.$router.push("/")
			},
			...mapMutations(['changeCity'])
		},
		computed: {
			hasNodata(){
				return !this.list.length
			}
		},
		watch: {
			keyword (){
				if ( this.timer ){
					clearTimeout( this.timer )
				}
				if( !this.keyword ){
					this.list = []
					return
				}
				this.timer =  setTimeout(()  => {
					const result = []
					for( let i in this.cities ){
						this.cities[i].forEach( (value) =>{
							if( value.spell.indexOf(this.keyword) > -1 || value.name.indexOf( this.keyword ) > -1 ){
								result.push(value)
							}
						})
					}
					this.list =  result
				},100)
			}
		},
		mounted(){
			this.scroll = new Bscroll(this.$refs.search)
		}
	}
</script>

<style lang='stylus' scoped>
	@import '~styles/varilbes.styl'
	.search
		padding 0 .1rem
		height .72rem
		background-color $bgColor
		.search-ipt
			width 100%
			padding 0 .1rem
			height .62rem
			line-height .62rem
			border-radius .06rem
			color #666
			text-align center
			box-sizing border-box
	.search-content
		position: absolute
		top 1.58rem
		left 0
		right 0
		bottom 0
		overflow hidden
		background-color #eee
		z-index 1
		.search-item
			line-height .62rem
			padding-left .2rem
			color #666
			background-color #fff
</style>